单项选择题

How many different calendars does Oracle 11g support?（）

A. 22
B. 7
C. 6
D. 15
E. 2

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单项选择题
Which is not a valid locale definition file type?（）

A. Language
B. Linguistic sort
C. Calendar
D. Territory
E. Character set
单项选择题
Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR?（）

A. All objects in the database
B. Tables owned by SYS and SYSTEM
C. Data dictionary tables
D. NCHAR columns
E. CHAR columns
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